Datasheet > ETA6937

ETA6937

更新时间： 2024-09-25 17:01:59

品牌	Logo	应用领域
钰泰 - ETA		/
页数	文件大小	规格书
19页	1085K
描述
3A Charger w.1A OTG, I2C Control

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ETA6937 数据手册

ETA6937

12V/3A Switching Li⁺Battery Charger and 5V/1A OTG with I²C Control

DESCRIPTION

FEATURES

The ETA6937 is a new generation of highly integrated synchronous switch-

mode charger, featuring integrated FETs and small external components,

targeted at extremely space-limited portable applications powered by 1-cell

Li-Ion or Li-polymer battery pack. Unlike previous generation of charging ICs

(BQ2415X and FAN54015 etc.) that can barely deliver charge current up to

1.5A, thanks to ETA’s proprietary technology, ETA6937 packs a powerful

punch and can delivery up to 3A of charge current, while still maintaining a

small footprint of 2mmx1.6mm. ETA6937 has bi-directional operation to

achieve boost function for USB OTG support. The ETA6937 have three

operation modes: charge mode, boost mode, and high impedance mode. In

charge mode, the IC supports a precision Li-ion or Li-polymer charging

system for single-cell applications. In boost mode, the IC boosts the battery

voltage to VBUS for powering attached OTG devices. In high impedance

mode, the IC stops charging or boosting and operates in a mode with very

low current from VBUS or battery, to effectively reduce the power

consumption when the portable device is in standby mode. Through I2C

communication with a host, referred to as "HOST" control/mode, the IC

achieves smooth transition among the different operation modes. Even when

no I2C communication is available, the IC starts in default mode. During

default mode operation, the charger will still charge the battery but using

each register's default values.

Up to 3A Max charging current Switching Charger

93% Charging Efficiency at 5V input 2A CC current

12V Input operating voltage

20V Maximum Input standoff voltage

No External Sense resistor

Integrate linear charger for accurate Iterm control

Input DPPM

Input current limiting

Bad Adaptor detection

No-Battery detection

Safety limit register for Vcharge and Icharge limits

Programmable charging parameters through I2C

Status Output for charging and faults

5V OTG boost mode up to 1A output current

Input OVP

Reverse leakage protection for Battery

Boost output current limiting

APPLICATIONS

Smart Phone

Tablet, MID

Power Bank

TYPICAL APPLICATION

PART No.

PACKAGE

CSP-20

TOP MARK

6937

Pcs/Reel

3000

ORDERING INFORMATION

ETA6937CSU

YWWL

www.etasolution.com

Powering Minds of the Smart

12 3 4 5 6 7...19

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